Accessibility Design is the practice of creating products, environments, and services that are usable by people of all abilities and disabilities. This approach ensures that everyone, including those with visual, auditory, motor, or cognitive impairments, can access and benefit from various designs, such as websites, buildings, and public spaces. Key principles of Accessibility Design include providing alternative text for images, ensuring proper color contrast, and creating navigable layouts. By following guidelines like the Web Content Accessibility Guidelines (WCAG), designers can create inclusive experiences that allow all individuals to participate fully in society.